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P7060262

We were able to snap this photo at the perfect time when the steam from the Mammoth Hot Springs cleared momentarily. The active portion of the formation where there is hot water currently flowing shows up as orange-ish brown where thermophilic bacteria are currently thriving. The white areas don't have hot water flowing over them now, but the system is very dynamic and the hot springs change from day-to-day and year-to-year.